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. 2013 Dec 24;7:213. doi: 10.3389/fnbeh.2013.00213

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Copyright © 2013 Stefanik and Kalivas.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Optical inhibition of BLA-to-PL fibers blocks cue-primed reinstatement. (A) Active lever pressing during self-administration and extinction training (n = 7). (B) ArchT-expressing fibers in the PL after virus injection in the BLA. Scale bar, 300 μm. (C) Inactivation of ArchT-expressing fibers in the PL significantly reduces cue-primed reinstatement of cocaine seeking, using a paired Student’s t-test with probability values adjusted for multiple comparisons according to Bonferroni, Sham t(6) = 3.31, p = 0.032; Laser t(6) = 2.47, p = 0.096. *p < 0.05 comparing laser and sham treatments, t(6) = 2.95, p = 0.051.